https://github.com/jruby/jruby/jruby-core: JRuby is the effort to recreate the Ruby (https://www.ruby-lang.org) interpreter in Java. (JRuby)
  • headius
  • enebo
  • wmeissner
  • BanzaiMan
  • mkristian 
class org.jruby.RubyNil$1 implements org.jruby.runtime.ObjectAllocator
  minor version: 0
  major version: 59
  flags: flags: (0x0020) ACC_SUPER
  this_class: org.jruby.RubyNil$1
  super_class: java.lang.Object
{
  void <init>();
    descriptor: ()V
    flags: (0x0000) 
    Code:
      stack=1, locals=1, args_size=1
        start local 0 // org.jruby.RubyNil$1 this
         0: .line 72
            aload 0 /* this */
            invokespecial java.lang.Object.<init>:()V
            return
        end local 0 // org.jruby.RubyNil$1 this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lorg/jruby/RubyNil$1;

  public org.jruby.runtime.builtin.IRubyObject allocate(org.jruby.Ruby, org.jruby.RubyClass);
    descriptor: (Lorg/jruby/Ruby;Lorg/jruby/RubyClass;)Lorg/jruby/runtime/builtin/IRubyObject;
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=2, locals=3, args_size=3
        start local 0 // org.jruby.RubyNil$1 this
        start local 1 // org.jruby.Ruby runtime
        start local 2 // org.jruby.RubyClass klass
         0: .line 75
            aload 1 /* runtime */
            ldc "allocator undefined for NilClass"
            invokevirtual org.jruby.Ruby.newTypeError:(Ljava/lang/String;)Lorg/jruby/exceptions/RaiseException;
            athrow
        end local 2 // org.jruby.RubyClass klass
        end local 1 // org.jruby.Ruby runtime
        end local 0 // org.jruby.RubyNil$1 this
      LocalVariableTable:
        Start  End  Slot     Name  Signature
            0    1     0     this  Lorg/jruby/RubyNil$1;
            0    1     1  runtime  Lorg/jruby/Ruby;
            0    1     2    klass  Lorg/jruby/RubyClass;
    MethodParameters:
         Name  Flags
      runtime  
      klass    
}
SourceFile: "RubyNil.java"
EnclosingMethod: org.jruby.RubyNil
NestHost: org.jruby.RubyNil
InnerClasses:
  org.jruby.RubyNil$1